This would remove the problem caused by the dangling wire the currently connects the two parts of the controller together and can get in the way playing games like Red Steel or Wii Sports: Boxing

Easily recharge the built-in battery via the wii cosole USB port.
Up to 20 hours use on a single charge (depending on playing conditions)
LED indicator
Low consumption mode(sleep mode)
Work range: Up to 6 meters
No interference among multiplayers